Linux Advanced Routing Tutorial

For years, we used to have a plain-old ADSL in the office—fast download speeds, slow upload, high latency—all that at the cost of $ 1/GB. We have had so many problems with performance and reliability that after a few years of struggling, we decided to get a second upstream link—SHDSL 5M/5M symmetric link—low latency, consistent speed during the day. It’s simply awesome.
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